EUGENE -- The Ducks' first halftime lead of the season turned out to be a bad omen.

San Jose State's Justin Graham hit a game-winning scoop shot in traffic with 2.8 seconds remaining as the Spartans handed the Oregon men's basketball team its first loss, 75-72, on Saturday in front of 7,352 at McArthur Court.

Oregon senior Joevan Catron scored 25 points and grabbed nine rebounds to pace the Ducks, while junior Garrett Sim added 11 points and junior Teondre Williams and sophomore E.J. Singler added 10 points each, but Oregon committed a pair of key turnovers and were held scoreless over the final 2:38 to let San Jose State escape.

"We had some bad possessions late -- bad turnovers, bad shots," Oregon coach Dana Altman said. "The first three games, we squeaked those out. We were trying to squeak another one out today, but fundamentally, we've got so far to go."

The Ducks (3-1) had the ball on their own end, down three, with 2.1 seconds left, but the ensuing inbounds pass bounced off a Spartan defender's head, forcing senior guard Jay-R Strowbridge into wild 3-point attempt that fell short and sealed the victory for undefeated SJSU.

The Spartans (3-0) were led by guards Keith Shamburger and Adrian Oliver, who had 19 points and seven rebounds each, while Graham finished with 12 points.

Oregon trailed by six with eight minutes left but held a 72-70 lead with 2:39 remaining when Catron scored and converted a three-point play, capping an eight-minute stretch where the 6-foot-6, 245-pound center poured in 16 points.

"We've been struggling to rebound the ball and execute down the stretch," said Catron. "We have to do a better job of communicating when the shot goes up and be aware when the shot hits the rim, you have to attack the ball."

Oregon junior forward Jeremy Jacob saw his first action of the season since undergoing arthroscopic knee surgery on Oct. 27. He checked in with 12:52 remaining in the first half and immediately made an impact, hitting his first two shots. Jacob -- who said his knee was "still a little stiff" following the game -- finished with nine points on 4-of-6 shooting and four rebounds in 14 minutes of action.

The Spartans, out of the Western Athletic Conference, led by as many as seven points early after the Ducks committed six turnovers in the opening nine minutes. Oregon, however, rallied when Sim hit a pair of 3-pointers from the right side and Williams slammed home a pair of crowd-riling dunks to propel the Ducks to a 39-34 lead at the half.

The Ducks are back in action at 7 p.m. on Tuesday, when they host Texas Southern.